<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      const url = `http://www.baidu.com?a=1&b=2&c=3`;

      // url.split("?")[1].split("&"); //['a=1',"b=2","c=3"]
      const re = url
        .split("?")[1]
        .split("&")
        .reduce((p, c) => {
          const [key, value] = c.split("="); //["a","1"]
          p[key] = value;
          return p;
        }, {});

      console.log(re);
    </script>
  </body>
</html>
